Mixing-machine for explosives.



H. TALLEY. MIXING MACHINE POR EXPLOSIVBS.

APPLICATION FILED .TUNE 7 1909.

Patented Nov. 16, 1909.

attain@ VHERBERT TLLIEY, 0F JOILN, MSSOUB.

fMXING-MACEINE FOR EXPLGSIVES.

sanierte.

Specification of Letters Patent. K Ptlelhd NOV. 16, 1909.

Applica/tion led .Tune 7, 1909. Serial No. 506,483.

To all whom it' muy concern.;

Be it known that l, HERBERT Tanner, a

citizen of the United States, residing at Joplin, county of Jasper, and State of Missouri, have invented certain new and useful Improvements in lilixing-Machines for Explosives, of which the following is a specilication.

This invention relates to mixing machines for explosives.

The present invention has for its object the provision of .a mixing machine for the treatment of plastic substances, particularly explosive gelatin and dynamites, which will possess novel features ot' construction whereby the bowl 'or 'receptacle in which the mixlng operation is conducted by stirrers or mixers, will be adapted to be raged or lowered by hydraulic pressure and will be rendered self-sustaining without requiring the employment of supplemental sustaining devices. l

ln mixing machines, particularly those for the mixing ot' explosives, it has been heretofore proposed to raise and lower the mixing devices or stirrers in one type of niachine and in another type te raise and lower the mixing 4bowl or receptacle to position the mixers inside or outside ot said mixing bowl, the separation -ot` the bowl and the nnxing means being required atdifferent times, as when iilling the bowl or removing its contents, cleaning the bowl and mixers. etc. I

There is an advantage in having the bowl raised-and lowered instead of the mixing devices; for the bowl is thus positioned at a height which more convenient to the operator of the machine and by hr 'ing the mixing devices incapable of rtical movement, the'employmentnot spe constructioi'is involving additional exper e is avoided.

In raising and lowerin the n'iixing bowl by hydraulic action, the bowl is rendered self-sustaining and thus the expense of addi- "`\tinal devices to sustain the. bowi against falling `is obviaieth as such devices become unnecessary.

in carrying out the invention there are provided'relatirely statitM4 f or stirrers, in connection. ally r ed mixing bowl or rece hydraulic pressure sustaining bowl in whatever position it may as:

The invention be carried out A ferent-ways, cert of which the accompanying drawings and set forth in the following'specitication.

ltn the accompanying drawings,z--Figure lt is a vertical elevation, partly in section, showing the mixing bowl in its raisedposition; and Fig. 2, a similar view of a modification.

In the machine frame l there are journaled the vertically disposed stirrer or, mixer shafts 2 and 3 which carry the interacting stirrers or mixers -it and 5 and are operated by suitable gears 6 from a shaft 7.

The mixing bowl or `receptacle 8, which is provided with a ackct S) having suitable connections,' is supported by pistons l0 Secured to the bottom thereof at l1 and working in hydraulic cylinders l2 which are supplied with the water or other heavy fluid by a pipe 13 leading to an accumulator 14 which contains the motive-fluid. A valve 15 is utilizable to prevent back flow of the luid from the cylinders after the mixing bowl has been raised and thus accidental dropping of the bowl is rendered impossible because water or other similar heavy liquid is practically incompressible. By virtue of the hydraulic lift, theyemployment of any supplemental locking or supporting means is rendered unnecessary and the mixing bowl vcan be safely positioned up or down with rapidity. Buffers 16 and l? limit the play of the bowl and preventV any sudden jars. The accumulator 't4v has a pipe 18 controlled by a suitable three-way valve 19 for the admission or exhaust to the atmosphere ot' compressed air which occupies the upper part of the' accumulator shown at 2G. The admission or exhaust of the air pressure by operating 'the valve t9 enables the mixing bowl to beraised or lowered aity wille ln the inodiication shown in Fig. F2, but oneI hydraulic cylinderyla is employtid, the mixing bowl 8 having depending guides 21 which snugly yet. easily tit cylinders 22.. Grooves 23 may be provided for the escape of the air from the cylinders Q2 when the bowl descends. I

lrtavin thus described myinvention, what claim as new and desire to secure by Letters latente is l, in a mixing machine, the com` ination with mining means, ot a movable bowler receptacle 'in which the mixing means is adapted operate; and hydraulic means for i 'ngyloweringj bowl wherever positioned.,

and supporting the mixv.ed to operate, hydraulic means foi' raisin and lowering the mixing bowl vlieieby the 2. ln'a mixing machine, the Combination with mixing means, of e movable bowl or receptacle in Which thel mixing means is adapted tol operate, hydraulic means for raising and lowering the mixing bowl, andaL valve for shutting olf back Vlion* olf the hyd aulic pressure, Whereb)7 the mixingbowl supported Where positioned.

In a n'iixing` machine, the keemljiination with mixing means, of a movable bowl o1` re-` ceptacle in which the mixin means is adaptmixing; bowl iS supported Where positioned,

and an .aeeun'inlatoi for Suid hydraulic;

means )thieh has controllable means fol the l .Y :idn'iision and exhaust oif'eompreseed aiI te @edel e control the raising and lowering of the niiX`- ing bowl.

4. In a mixing machine, the combination with mixing means, of a movable bowl o1' receptacle in which the mixing means is adapt ed to operate, a hydraulically operated pis ion on which the bowl is Supported and by which said bow] is raised .and lowered, and means for hydraulically operating Said pis ton and sustaining the pii'essnre thereon.

in teetimony whereof, hereunto aix my,

signature in presence of two witneeses,

l lllflRllll TAL-LEY. 

